But strength is just the beginning with USG gypsum underlayments. usg.com/underlayments © 2017 USG Corporation and/or its affiliates. All rights reserved. The trademarks USG, IT’S YOUR WORLD. BUILD IT., the USG logo, the design elements and colors, and related marks are trademarks of USG Corporation or its affiliates. USG Performance Flooring Solutions SURPRISINGLY STRONG UNDERLAYMENTS.